Frankfurt 2006 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
A: Atomphysik
A 8: Poster I: Pr
äzisionsspektroskopie
A 8.15: Poster
Dienstag, 14. März 2006, 16:30–18:30, Labsaal
Projectile x-ray emission in relativistic collisions of Be-like uranium ions with gaseous target. — •S. Trotsenko1,2, D. Banas3, A. Gojska4, A. Gumberidze1,2, S. Hagmann1,2, S. Hess1,2, Ch. Kozhuharov1, D. Liesen1, M. Nofal1, R. Reuschl1,2, J. Rzadkiewicz1,4, U. Spillmann1,2, and Th. Stöhlker1,2 — 1GSI, Darmstadt, Germany — 2IKF, Universitat Frankfurt, Germany — 3Institute of Physics, Swietokrzyska Academy, Kielce,Poland — 4The Soltan Institute for Nuclear Studies, Swierk, Poland
During recent years the process of K-shell ionization of Li-like high-Z ions in relativistic collisions with gaseous targets was studied at the ESR storage ring at GSI. This process has proven to be a highly-selective mechanism for the population of excited (n=2) s-states. In the present study, the state selective investigation was extended to the study of initially Be-like ions allowing us to produce almost exclusively an excited state in Li-like uranium which is expected to undergo predominantly an exotic two electron-one photon decay. The experiment was performed with cooled Be-like uranium ions colliding with N2 gas target at the energy of 90 MeV/u at the storage ring ESR. The x-rays produced in this process were measured under different angles with respect to the propagation direction of the ion beam. In particular the radiative transitions in the Li-like uranium ions caused by K-shell ionization of the initial projectile were studied. The spectral data and preliminary analysis results will be presented.